3055421 has 4 divisors (see below), whose sum is σ = 3061344. Its totient is φ = 3049500.

The previous prime is 3055417. The next prime is 3055439. The reversal of 3055421 is 1245503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1245503 = 7 ⋅177929.

It is a cyclic number.

It is not a de Polignac number, because 3055421 - 2² = 3055417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3055393 and 3055402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3055441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105 + ... + 3246.

It is an arithmetic number, because the mean of its divisors is an integer number (765336).

Almost surely, 2^3055421 is an apocalyptic number.

It is an amenable number.

3055421 is a deficient number, since it is larger than the sum of its proper divisors (5923).

3055421 is an equidigital number, since it uses as much as digits as its factorization.

3055421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3055421 is about 1747.9762584200. The cubic root of 3055421 is about 145.1076647857.

The spelling of 3055421 in words is "three million, fifty-five thousand, four hundred twenty-one".